US400053A

US400053A - Roller-journal bearing

Info

Publication number: US400053A
Authority: US
Publication date: 1889-03-26
Anticipated expiration: 1906-03-26

Description

2 Sheets-Sheet 1.

(No Model.)

0. RJGHAPLIN.

R0LLRR JOURNAL BEARING.

No. 400,053. Patented Mar. 26, 1889.

(MINI/1";

III]! r g Mw N. PETERS, Phnwuthognphor. wuhin hn. n c.

(No Modem I 2 SheetsSheet 2, 0. R. GHAPLIN.

ROLLER JOURNAL BEARING. No. 400,053. Patented Mar. 26, 1889.

Inventor: Orril RL'haplin,

Jlllorney.

N, PETERS PholoLilhugnpher. Waahinglon, n. c,

UNITED STATES PATENT OFFICE.

ORRIL R. lIAPIlIN, OF BOSTON, MASSACHUSETTS.

ROLLER-JOURNAL BEARING.

SPECIFICATION forming part of Letters Patent No. 400,053, dated March 26, 1889.

Application filed November 17, 1888. Serial No. 291,081. (No model.)

T 0 all whom it may concern.-

Be it known that I, ORRIL R. CHAPLIN, of Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Roller-Journal .liearin gs, of which the following, taken in connection with the accompanying drawings, is a specification.

My invention relates to roller journal-bean ings for shafts and axles; and it consists in certain novel features of construction, arrangement, and combination of parts, which will be readily understood by reference to the description of the drawings, and to the claims to be hereinafter given, and in which my invention is clearly pointed out.

Figure 1 of the drawings is a plan of an axle-bearing for street-cars embodying my invention. Fig. 2 is a vertical section on line a .r on Figs. 1 and Fig. 3 is a horizontal section on line y y on Fig. 2. Fig. 4 is an elevation of the inner end of the bushing or lining within which the bearing-rollers revolve. Fig. 5 is a longitudinal section of the same 011 line .22 and showing a small portion of the main casting in section and the means employed to prevent said bushing revolving within its casing in elevation. Fig. (3 is a transverse section of the roller-carrying frame with the rollers removed, the cutting plane being on line 20 w on Fig. 7. Fig. 7 is a longitudinal section on line t r on Fig. (5. Fig. Sis an elevation of the end of the aXlewith the ann ularly-grooved thrust-collar seen red thereon. Fig. 9 is a section on line? ton Fig. 8, and Fig. 10 is an elevation of the forked ballseparator.

In the drawings, A is the main casing or shell of the bearing, having connected therewith by the ribs A the spring supportingseats A".

B is the axle provided with the shoulder a, and having secured to its end by the screws 7) b the annularly-grooved collars 0, provided in its outer face with an annular rabbet to receive the hardened-steeldisk c, as shown in Fig. 3.

The casing A is provided at one end with the inwardly-projecting flange (7, and near the same end with the annular shoulder 67, against which one end of the bushing e e abuts, as shown. The bushing-e e is divided obliquely into two parts, as shown in Figs. 4 and 5, so that the upper portion, 6, which is subj ected to the greatest wear, may be readily and easily removed and replaced byanew section whenever it becomes necessary. The lower section, 6', has formed in its inner end the slot with which the pin (a set in the casing A and projecting inward therefrom, engages to prevent the bushing e c revolving in said casing, all as shown in Figs. 4 and 5. The axle B has fitted thereon in contact with the shoulder a the collar f, and between it and the collar 0 the sleeve g is so fitted to the axle as to. revolve therewith, and upon this sleeve is mounted, so as to revolve thereon, a roller-carrying frame composed of the two heads or collars 7?. 7L and the tie-rods 7L h, secured in said heads, so as to maintain them at the proper distance apart. The openings through the heads or collars h h are bushed with rings 7L2 of suitable material, preferably of a fibrous naturesuch as leatheroid or chemically-treated paperwhich serves to reduce the friction of the surfaces, and thus render them more durable.

C C are a series of bearing-rollers, each having a diameter equal to the distance between the exterior of the sleeve gand the interior of the bushing c e and a length nearly equal to the distance between the inner faces of the heads or collars 72. 71, said rollers being arranged around the sleeve g at equal distances from each other, as shown in Fig. 2.

Between each two of the bearing-rollers C C'is a smaller roll, 1', having its ends made frusto-conical and fitted to curved slots 1', formed in the heads or collars 71 71, the sides of which slots are inclined to fit the taper of the frusto-conical bearing ends of the rolls '2', the length of the slots t" in the direction of the circumference of the head or collar being suliicient to permit a free movement to a limited extent of the rolls 1' 11 about the sleeve g. The rolls 2 i are of such a diameter as to fill the spaces between the rollers C C and maintain them at a uniform distance apart, and their movement about the sleeve g is so limited by the ends of the slots 1' i as to prevent the rollers O 0 coming in contact with the tierods h 72.. (See Fig. 6.) i

A ring, j, is titted in the outer end of the 1 casing A and abuts against the outer end of l) is a cap chambered to inclose the collar which projects beyond the ez'ising' A, and having formed therein a smaller chamber, in

the bottom of which is titted the disk In, in v the frusto-ctmieal bearing ends of said smaller the inner [ace of which formed acurved annular groove, in which roll the two balls n, which balls are kept at a uniform distance apart by the li'ork-ei'idcd carrier 0, pivoted to the center of the disk at, and bear against the disk 0 to take the endwise thrust of the axle or shaft in the opposite direction. A disk of leather or other suitable material, p, is secured to the inner end of the casing A by the annular cap or ring R and serves as a dust'guard.

The sleeve g may be dispensed with, if desired, and the rollers C may bear direetly upon the axle; but l prefer to use the sleeve, because when it; becomes badly worn it; may be removed and replaced by a new one. and the axle remains as good as new.

it has been found necessary in practice to have the outer casing or box of roller-bearings hushed, so that when the parts become badly worn said bushing maybe removed and a new one inserted in its place, thereby avoiding the necessity of thrmvine' away the main easingorbox; but heretofore said linishing' has been made in one j )lOC(;, which I have found to be quite objectionable for the reason that the constant rolling of the bearing-rolls within said bushing tends to expand it and. pack it so tightly into the outer casing as to render it difficult to remove it, and when removed the whole lnushing' had to be thrown into the scrap heap and an entire new bushing putin its place.

lly nniking the lulshing e a in two parts divided obliquely, as shown and described, the upper portion, e, which is the only part subjected to any considerable wear, may be readily removed and a new section put in its place without disturbing the lower section, e.

The collars and 7;, the disks 0 and m, and the balls 7 and o are preferablymade of steel and hz'rrdened.

What I claim as new, and desire to secure by Letters Patent of the United States. is

1. In a roller-liiearing, the combination of an outer casing and a cyliinlricalbushing'dil vided longitudinally into two parts, the plane of division being oblique to its axis. i

3. In a roller-bearing, the combination of an inclosing casing or box, :1 roller-carrying frame composed of two annn ar heads or collars connected together by a series of tie-rods, a series of bearing-rolls lying loosely between said heads or collars, a corresponding number of smaller rolls having frustoconieal l'iearing ends and arranged one between each two of said bearing-rolls, each of said heads beingprovided with a corresponding number ot. curved slots having inclined sides to receive rolls.

3. In a roller-journal ljiearing, the combination, withv the axle or journal, of the collars o and j, secured thereon the roller-earrying' frame 71 71 71 fitted to said journal. between said collars and revoluble thereon, the bearing-rollers (l ,rest1ing loosely between the heads of said revoluble fran'ie witlnnit bear ings therein, the smaller rolls, '1', alternating with said l'iearing rolls and having; hearings in said heads, and an outer casing or box inclosing the whole and havinga cylindrical inner surface upon which the bearing-rollers travel as the journal or axle is revolved.

l. In combination with the axle or journal and the outer casing or box, the annular eollar 7r, secured in. a fixed position in the outer end of said casing, the collar 0, secured to the end of said axle or journal and having formed in its inner face an annular groove or pocket, a ball fitted in said groove or pocket and arranged to bear ag'z'tinst the collar /r, and to take the thrust of the shaft or axle in one di rection, the cap I), inelosing said collar 0, the an]inlarly-grooved disk on, fitted to a recess in said cap, the steel disk 0, set in the outer face of the collar 0, and a ball or balls interposed between the disk 0 and theannularlygrooved disk n1, so as to take the thrust of the shaft or axle in the opposite direction.

The combination of the casing or box, the axle or journal, the collars c and 1., the cap D, the disk in, the balls and n, and the ball-carrier 0, all constructed, arranged, and operating substantially as and for the purposes described.

in testinn'my whereof I' have signed my name to this spcci tication, in the presence of two subscribing witnesses, on this lst day of Novem her, A. l).

N. lion uixnn, \VA'I'JIEi': E. llonmno.